I'm going to say pretty much the same as the advice you have already had from others.

If you have strong objections and you are not happy to push your boundaries and try the things he is suggesting then NO you should not force yourself to accommodate him.

You must be completely comfortable with your submission to him and he should respect your limits. Limits are often mobile and do change as a BDSM relationship changes but both sides need to agree on any new limits or any new areas and experiences that you might want to try.

You need to talk to him seriously about this, if possible on an equal level i.e. not whilst in your sub and Master roles. If he cannot respect your limits and be happy to leave those things that you really cannot accept out of your play then you may need to walk away.

C x